Brief Answer: Side effect of I-pill Detailed Answer: Hello! Thanks for your query. You dont need to worry because chances for pregnancy are very very low because: you have protected intercourse you have used I pill I pill ,main side effect by using it ,is irregular periods making your period come as much as a week earlier or a week later than usual. You should wait for another week for periods to come. If the periods will not come you should take at least a pregnancy test at home,to rule out pregnancy . Take care of your self

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